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Biochim Biophys Acta. 2004 Mar 4;1654(1):13-22.

Regulation of angiogenesis by extracellular matrix.

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Center for Cardiovascular Research, Department of Medicine, University of Rochester Medical Center, 601 Elmwood Avenue, Box 679, Rochester, NY 14642, USA.


During angiogenesis, endothelial cell growth, migration, and tube formation are regulated by pro- and anti-angiogenic factors, matrix-degrading proteases, and cell-extracellular matrix interactions. Temporal and spatial regulation of extracellular matrix remodeling events allows for local changes in net matrix deposition or degradation, which in turn contributes to control of cell growth, migration, and differentiation during different stages of angiogenesis. Remodeling of the extracellular matrix can have either pro- or anti-angiogenic effects. Extracellular matrix remodeling by proteases promotes cell migration, a critical event in the formation of new vessels. Matrix-bound growth factors released by proteases and/or by angiogenic factors promote angiogenesis by enhancing endothelial migration and growth. Extracellular matrix molecules, such as thrombospondin-1 and -2, and proteolytic fragments of matrix molecules, such as endostatin, can exert anti-angiogenic effects by inhibiting endothelial cell proliferation, migration and tube formation. In contrast, other matrix molecules promote endothelial cell growth and morphogenesis, and/or stabilize nascent blood vessels. Hence, extracellular matrix molecules and extracellular matrix remodelling events play a key role in regulating angiogenesis.

[Indexed for MEDLINE]

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